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Today's Topics:
1. Re: Add scope without service restart, possible? (Simon Hobson)
2. RE: Add scope without service restart, possible?
(Steve van der Burg)
3. Re: Add scope without service restart, possible? (Patrick Trapp)
----------------------------------------------------------------------
Message: 1
Date: Fri, 22 May 2020 20:22:14 +0100
From: Simon Hobson <dh...@thehobsons.co.uk>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Add scope without service restart, possible?
Message-ID: <b329b452-5475-4929-b042-85baafce3...@thehobsons.co.uk>
Content-Type: text/plain; charset=us-ascii
Cayab, Jefrey E. <jca...@gmail.com> wrote:
> Wanted to check if it's possible to add new DHCP scope to a running DHCPd
> service and to take effect without restart the service? Is there a reload
> equivalent that can take in the updated config?
Not with the ISC server. However, a restart should be very quick for any
reasonable configuration - and if you use dual servers with failover, then no
interruption in service to end devices.
Simon
------------------------------
Message: 2
Date: Fri, 22 May 2020 19:30:10 +0000
From: Steve van der Burg <steve.vanderb...@lhsc.on.ca>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: RE: Add scope without service restart, possible?
Message-ID:
<yqxpr01mb2326ad7b94e1161fc4ee51bfba...@yqxpr01mb2326.canprd01.prod.outlook.com>
Content-Type: text/plain; charset="us-ascii"
I run a pair of servers with all leases (~40k active right now, out of ~370k
defined) in failover pools and routinely change the configs and restart with no
interruption to service, as Simon just indicated.
I push new configs to both servers and then the servers test them and, if they
pass, restart on alternate minutes (primary on even minutes, for example, and
secondary on odd minutes).
...Steve
-----Original Message-----
From: dhcp-users <dhcp-users-boun...@lists.isc.org> On Behalf Of Simon Hobson
Sent: Friday,May 22,2020 3:22 PM
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Add scope without service restart, possible?
CAUTION: This email originated from outside the organization. Do not click
links or open attachments unless you recognize the sender and know the content
is safe.
Cayab, Jefrey E. <jca...@gmail.com> wrote:
> Wanted to check if it's possible to add new DHCP scope to a running DHCPd
> service and to take effect without restart the service? Is there a reload
> equivalent that can take in the updated config?
Not with the ISC server. However, a restart should be very quick for any
reasonable configuration - and if you use dual servers with failover, then no
interruption in service to end devices.
Simon
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------------------------------
Message: 3
Date: Fri, 22 May 2020 21:44:15 +0000
From: Patrick Trapp <ptr...@nex-tech.com>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Add scope without service restart, possible?
Message-ID:
<dm6pr12mb3577a9078e41e04a79d0a2d9e6...@dm6pr12mb3577.namprd12.prod.outlook.com>
Content-Type: text/plain; charset="us-ascii"
I can second that. We run a pair of servers plus a staging server. We make
changes and test the code on the staging server. If it passes, we sync to a git
server. We run a script that causes the production servers to pull the new
config from git and restart, one at a time.
________________________________
From: dhcp-users <dhcp-users-boun...@lists.isc.org> on behalf of Steve van der
Burg <steve.vanderb...@lhsc.on.ca>
Sent: Friday, May 22, 2020 2:30 PM
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: RE: Add scope without service restart, possible?
CAUTION: This email originated from outside of the company. Do not click links
or open attachments unless you recognize the sender and know the content is
safe.
I run a pair of servers with all leases (~40k active right now, out of ~370k
defined) in failover pools and routinely change the configs and restart with no
interruption to service, as Simon just indicated.
I push new configs to both servers and then the servers test them and, if they
pass, restart on alternate minutes (primary on even minutes, for example, and
secondary on odd minutes).
...Steve
-----Original Message-----
From: dhcp-users <dhcp-users-boun...@lists.isc.org> On Behalf Of Simon Hobson
Sent: Friday,May 22,2020 3:22 PM
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Add scope without service restart, possible?
CAUTION: This email originated from outside the organization. Do not click
links or open attachments unless you recognize the sender and know the content
is safe.
Cayab, Jefrey E. <jca...@gmail.com> wrote:
> Wanted to check if it's possible to add new DHCP scope to a running DHCPd
> service and to take effect without restart the service? Is there a reload
> equivalent that can take in the updated config?
Not with the ISC server. However, a restart should be very quick for any
reasonable configuration - and if you use dual servers with failover, then no
interruption in service to end devices.
Simon
_______________________________________________
ISC funds the development of this software with paid support subscriptions.
Contact us at https://www.isc.org/contact/ for more information.
dhcp-users mailing list
dhcp-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/dhcp-users
This email is directed in confidence solely to the person named above and may
contain confidential, privileged or personal health information. Please be
aware that this email may also be released to members of the public under
Ontario's Freedom of Information and Protection of Privacy Act if required.
Review, distribution, or disclosure of this email by anyone other than the
person(s) for whom it was originally intended is strictly prohibited. If you
are not an intended recipient, please notify the sender immediately via a
return email and destroy all copies of the original message. Thank you for your
cooperation.
_______________________________________________
ISC funds the development of this software with paid support subscriptions.
Contact us at https://www.isc.org/contact/ for more information.
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End of dhcp-users Digest, Vol 139, Issue 8
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